Camp stove



Nov. 17, 1925. 1,561,610

W. C. LINDEMANN CAI? STOVE Filed June 1, 1922 v I gnwntoz Patented Nov. 17, 1925.

UNITED STATES PAT EN'T OFFICE.

WALTER C. LINDEMANN, OF MILWAUKEE, J J'ISGONSJITN, ASSIGNOR TO A. J. LINDE- MANN 8:; HOVERSON COMPANY, OF MILWAUKEE, W'ISCONfiIIT, A CORPORATION OF WISCONSIN;

. CAMP STOVE.

Application filed June 1,

To all whom it may concern:

Be it known that I, l VALTER C. LINDE- MANN, a citizen of the United States. and a resident of the city of hilIilwaukee, in the county of Milwaukee, State of Wisconsin,

have inventedcertain new and useful Improvements in Camp Stoves, of which the following isa specification.

The improvements relate to stoves in which hydrocarbon liquid fuel is utilized, and are primarilydesigned to provide a stove for such fuel, which may be used for camping or other out-door purposes, as Well as for any other purpose for which it may be adapted. t

Among their objects are the production of a stove of this character of simple, strong, and durable construction, which will be easy to handle, carry, and store, and which may be used under various conditions and for various purposes outdoors, as .well as in, and will operate efficiently and without undesirable results under all ordinary conditions. I

The invention is illustrated in. the accompanying drawings, in which Figure 1 is a front View of a stove embodying the improvements, with a part of the outer casing broken away; Fig. 2 is aplan thereof with the casing-and combustion tubes in hori- Zontalsection. substantially on the line 22 of Fig. 1, and Fig. 3' is a vertical medial section of the font, wick tubes and parts connected therewith.

The outer casing 1 is in the form of a drum or cylinder, having suitable legs 2 bolted thereto at 3, and provided with feet 4 which have holes 5 therein to receive screws or other means for fastening it to a floor, table, or other support. The legs also have offset portions 6 to which the ont is secured, and all of the parts just described are formed of a single piece ofstrap or band iron. An annular flange 7 is secured to the upper part of the drum inside and receives and supports a grid or grate 8. p The combustion chamber is of the blueflame variety and consists ofconcentric perforated cylinders 9 and 10, seated on the Wick tubes and an outer shield 11 surrounding them. The. casing has an opening 12 through which access may be had to the 1922. Serial No. $5,229.

parts within for lighting, cleaning, or other purposes, and a handle 13 provides means for raising the combustion chamber.

The stove proper is complete in itself and consists of the font l4, w'icl tubes 15 and 16, central draft regulator 17, bottoin shield 18, and certain accessories. The font 14 is of comparatively great diameter and small depth, and has a central depressed portion 19, so that at this part it is very shallow while toward the periphery it is much deeper. The wick tubes are set in a central aperture of the depressed portion, and soldered or otherwise secured in liquid-tight manner to the upper and lower Walls of the font. The outer tube, 16 has openings at 20 within the font. through which the liquid fuel communicates with the annular oil space of the wick tubes and the wick, the outer and inner tubes being connected at the bottom 21, preferably being drawn from a single piece of material. The wick tubes and wick extend above the font a con: siderable distance, so that the combustion at the upper edge of the wick is not in proximity to the font, and oil cannot overflow from the. top of the wick tubes even when the stove is tilted to a point where the outer edge of the font would rest on ground or other horizontal support, if the outer drum were not present. In fact when the font is filled to a point below full heightwhich may beindicated or observed at the filling holethe stov may be placed in a horizontal position or even inverted without spilling the liquid fuel. At the same time the last drop of oil in the font will drain into the wick tubes when the stove is in normal position. The shield 18 is connected with the bottom of the font 14 by means of arms 22, and has a central opening 23, through which air may enter to the central draft space of the burner as well as over the upper edges of the said shield, which is of pan-like form. The central draft regulator cone 17 is secured to the space inside the wick tubes by means of small brackets 24, and feeds air to the inside of the combustion chamber, by permitting the air to pass up around it and to and through the small central opening 25 in its top. Supports 26 and 27 are formed on the upper edges of the wick tubes to receive the lower edges of the combustion chamber walls and support the said chamber.

The stove proper is mounted in the drum by means of a strap or band of metal 28 passing around it and clamped thereon by the tension bolt 29. This band being riveted or otherwise secured to the offset portions 6 of the legs. In this manner the store proper is securely mounted in its casing, but made quickly and-easily removable therefrom, so that it can be taken out and used without the drum, if desired, or carried-or stored. It is also possible to regulate the tension of the band 28 so that the font may be taken out or replaced without adjusting the clamp, the font resting its flange 29 on said band, Thusthe stove proper may be used, packed, or transported separately and the drum may be treated in the same manner. The drum is also so designed that it can be used for solid fuel. if desired, and when thestove is removed.

Another advantage is found in the fact that the wick tubes of the burner, extending through only a small depth of the font are exposed throughout almost their entire length to the cooling action of the atmosphere, which prevents overheating of the burner and theoil therein. The circulation of air around the font beneath it and be tween it and the drum and over its extended top surface also makes for a cool burner.

This construction also permits the wick raising device to be located and supported on the wick tubes entirely above the font, which is a very simple and durable construction, facilitates the assembling of the parts and secures other advantages, among them easy access to the wick raising device for repairs and other purposes. It also saves a number of parts, which are necessary when the wickraisiug device is located inside the font.

The housing 80 of the spur or gear or other device, by which the wick is raised and lowered, is soldered or otherwise secured to the outer wick tube, and the stem by which it is operated extends throughv a sleeve 31 to the wheel 32. A suitable indicating device 33 is located on the tube, and a bracket 88 secured to the outer tube through which the stem tube passes, braces and strengthens the construction. The filling tube 34 is mounted on the top of the font and in communication therewith and has a removable cap 35 for closing the same secured to the chain 36, which in turn is fastened to the font.

A bail handle 37 by which the stove may be carried is attached thereto by having its inturned ends passed through holes in the upper part of the drum.

WhatI claim is:

1. The combination of a font for liquid fuel, having a horizontal diameter in excess of its depth and provided with a depressed interior portion extending below midheight of the surrounding portion, vertical wick tubes spaced to provide a wick space therebetween connected with the font at the said depressed portion, and having the spacein communication with the interior of theifont and extending below and above the ripper surface of the portion of the font which surrounds the depressed portion, said point of communication between the wick space and the font being at the lower part of said depression and leadingdirectly into the wick space above the lower end thereof.

2. The combination of a font for liquid fuel, having a horizontal diameter in excess of its depth andprovided with a, de-

pressed interior portion extending below.

midheight of the surrounding portions, vertical wick tubes spaced to provide a wick space therebetween connected with the font at the said depressed portion, and having the space in communication with the interior of the font and extending below and above the upper surface of the portion of the font which surrounds the depressed portion, said point of'communication between the wick space and the fontbeing at the lower part of said depression and leading directly into the wick space above the lower endthereof, and a connection for a wick raising device secured to said wick tubes above the bottom pf the depressed portion and exterior to the out. a

3. The combination of a font for liquid fuel having a horizontal diameter in excess of its depth and provided with adepressed interior portion extending below midheight of the surrounding portion, vertical wick tubes spaced to provide a wick space therebetween connected with the font at the said depressed portion and having the space in communication with the interior of the font and extending below and above the upper surface of the portion of the font which surrounds the depressed portion, said point of communication between the wick space and the font being at the lower part ofsaid depression and leading directly into the wick space above the lower end thereof, said wick tubes also extending below the bottom of the font.

4. The combination of a blue flame burner, a tank supporting and extending laterally beyond the same,the upper surface of said tank being centrally depressed to form arestricted outlet, a support for said tank, and a direct connection between the restricted outlet of said tank and the blue flame burner above the lower end of said burner.

5. The combination of a font for liquid fuel, having a horizontal diameter in excess of its depth and provided with a depressed interior portion extending below midheight of the surrounding portion vertioul Wick tubes spaced to provide a Wick space therehetween connected with the font at the seit depressed portioin and heving the space in con'iniunieetion with the interior of the Jfont and extending below and above the upper surface of the portion of the font which surrounds the depressed portion, said point oi? communication between the Wick space and the font being at the lower part of said depression and leading directly through the side Wall of the Wick tube adjacent the lower end thereof.

6. The combination of a blue flame burner, a tank supporting and extending 12tterally beyond the same, at support for the tank, the upper Wall of the tank being depressed towards the bottom wall to provide a restricted outlet therebetween and leading directly to the blue flame burner through the side wall of said burner.

\Vitness my hand this 29th day of Ailey, 1922, at the city of Milwaukee, in the county of Milwaukee, State of Wisconsin.

WALTER G. LINDEMANN. 

